| Par\u00e2metro T\u00e9cnico<\/th>\n | Specification \/ Value<\/th>\n | Unidade \/ Contexto<\/th>\n<\/tr>\n<\/thead>\n |
|---|---|---|
| Torque de sa\u00edda<\/td>\n | 250 – 850<\/td>\n | Nm (Anti-Jamming)<\/td>\n<\/tr>\n |
| Raz\u00e3o de redu\u00e7\u00e3o<\/td>\n | 1:15 \/ 1:30 \/ 1:60<\/td>\n | Worm or Helical<\/td>\n<\/tr>\n |
| Input Power<\/td>\n | 0.37 – 2.2<\/td>\n | kW (Electric Motor)<\/td>\n<\/tr>\n |
| Velocidade de sa\u00edda<\/td>\n | 25 – 65<\/td>\n | RPM (Vari\u00e1vel)<\/td>\n<\/tr>\n |
| Material de Constru\u00e7\u00e3o<\/td>\n | Cast Iron HT250 \/ Aluminum<\/td>\n | Epoxy Coated<\/td>\n<\/tr>\n |
| Material da Engrenagem<\/td>\n | KK Alloy Bronze \/ 20CrMnTi<\/td>\n | Resistente ao desgaste<\/td>\n<\/tr>\n |
| Material do Eixo<\/td>\n | Stainless Steel AISI 304<\/td>\n | \u00c0 prova de corros\u00e3o<\/td>\n<\/tr>\n |
| Di\u00e2metro do eixo<\/td>\n | 25mm \/ 30mm \/ 40mm<\/td>\n | Hollow or Solid<\/td>\n<\/tr>\n |
| Sealing Rating<\/td>\n | IP67<\/td>\n | Dust & Water Tight<\/td>\n<\/tr>\n |
| Tipo de Selo<\/td>\n | Viton (FKM) L\u00e1bio Duplo<\/td>\n | Oil & Heat Resistant<\/td>\n<\/tr>\n |
| Lubrifica\u00e7\u00e3o<\/td>\n | Synthetic Polyglycol Oil<\/td>\n | Long Life<\/td>\n<\/tr>\n |
| Oil Capacity<\/td>\n | 0.4 – 1.2<\/td>\n | Litros<\/td>\n<\/tr>\n |
| Fator de Servi\u00e7o<\/td>\n | 1.5 – 2.0<\/td>\n | Continuous Duty<\/td>\n<\/tr>\n |
| Mounting Flange<\/td>\n | IEC Standard (B5\/B14)<\/td>\n | Ajuste Universal<\/td>\n<\/tr>\n |
| Paint Thickness<\/td>\n | > 120 microns<\/td>\n | Marine Grade<\/td>\n<\/tr>\n |
| Efficiency<\/td>\n | 75% – 92%<\/td>\n | Depending on Type<\/td>\n<\/tr>\n |
| N\u00edvel de ru\u00eddo<\/td>\n | < 65<\/td>\n | dB (Low Noise)<\/td>\n<\/tr>\n |
| Bearing Brand<\/td>\n | NSK \/ SKF \/ C&U<\/td>\n | Heavy Duty<\/td>\n<\/tr>\n |
| Temperatura de Opera\u00e7\u00e3o<\/td>\n | -15\u00b0C a +55\u00b0C<\/td>\n | Ambiente<\/td>\n<\/tr>\n |
| Peso<\/td>\n | 8 – 35<\/td>\n | kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
2. The Pulse of Centralized Feeding: Precision Dosing for Maximum FCR<\/h2>\nIn the expanding landscape of Brazilian aquaculture, particularly in the intensive Tilapia cage farms of the Paranapanema River and the super-intensive RAS (Recirculating Aquaculture Systems) for Shrimp, the Pneumatic Feeder for RAS\/Cages Gearbox<\/strong> is the critical component defining Feed Conversion Ratio (FCR). Centralized pneumatic feeding systems rely on high-velocity air streams to transport pellets through HDPE pipes to cages hundreds of meters away. The gearbox in this system drives the Rotary Airlock Valve (Dosador)<\/strong>, which must meter the feed into the airstream with absolute volumetric precision. If the gearbox falters or varies in speed, feed distribution becomes erratic\u2014causing “dusting” (broken pellets) which pollutes the water and increases ammonia levels, or causing pipe blockages that stop feeding entirely during critical growth windows.<\/p>\n N\u00facleo Agro Agrin\u00facleo<\/strong> has engineered the “Aero-Dose” series specifically for these applications. Unlike standard industrial reducers that suffer from seal failure when exposed to the fine, oily dust of fish feed (Ra\u00e7\u00e3o), our units feature a specialized IP67 Dust-Proof Sealing System<\/strong>. The gearbox housing is cast from corrosion-resistant HT250 iron and coated with a marine-grade epoxy to withstand the humid, saline environment typical of Brazilian cage farming. The internal gearing is designed for high-torque at low RPMs (typically driving the valve at 30-60 RPM), ensuring that the rotor shears through any oversized pellets without jamming. As a premier fabricante agr\u00edcola<\/strong>, we understand that consistency in feeding equals consistency in harvest weight, directly impacting the profitability of Brazilian producers.<\/p>\n <\/p>\n In a pneumatic feeding system for RAS or open cages, the blower generates a high-volume, low-pressure air stream. The challenge is to introduce solid feed pellets into this pressurized air stream without losing air pressure (“blowback”). This is where the Rotary Airlock Valve comes in, and the redutor agr\u00edcola<\/strong> driving it is the key to its function. The gearbox reduces the high speed of the electric motor (usually 1750 RPM) to a precise, slow rotation (e.g., 40 RPM). As the valve rotates, its pockets fill with feed from the hopper above and then dump the feed into the pipe below, while maintaining an air seal.<\/p>\n Agrinulear’s gearboxes are designed with a high “Service Factor” to handle the potential jamming caused by feed pellets getting stuck between the rotor blade and the housing. A standard gearbox might stall or strip gears under this “shock load.” Our units utilize a hardened worm shaft (20Cr steel) and a resilient bronze alloy worm wheel, which provides shock absorption characteristics. Furthermore, the caixa de c\u00e2mbio agr\u00edcola<\/strong> is equipped with a hollow output shaft option for direct mounting onto the airlock shaft, eliminating the need for chains or belts that require maintenance and pose safety risks on floating pontoon barges. This direct-drive capability is essential for the compact, automated barges used in Brazil’s large reservoirs.<\/p>\n <\/p>\n Brazil’s aquaculture hubs, such as the S\u00e3o Francisco River Valley and the reservoirs of Mato Grosso do Sul, experience intense heat and humidity. A gearbox mounted on a metal feed barge in the middle of a lake can reach surface temperatures of over 60\u00b0C. This heat causes internal pressure buildup, which can force oil out through standard seals. Agrinulear fabricante agr\u00edcola<\/strong> engineers have addressed this by integrating specialized “Sintered Bronze Breathers” that allow air expansion without letting moisture in.<\/p>\n Additionally, the feed dust (p\u00f3 de ra\u00e7\u00e3o) is extremely fine and oily. In combination with humidity, it forms a sticky paste that can destroy standard rubber seals. Our “Aero-Dose” gearboxes feature a “Labyrinth Seal” protection on the output shaft\u2014a non-contact path that physically prevents dust from reaching the primary Viton oil seal. This design extends the seal life by up to 300% compared to generic reducers. We also use stainless steel hardware (bolts and plugs) to prevent the galvanic corrosion common in brackish water environments, ensuring that maintenance is possible even after years of service.<\/p>\n <\/p>\n <\/p>\n The Brazilian market is flooded with generic industrial gearboxes (“redutores industriais”) repurposed for aquaculture. These units often lack the specific protections needed for floating feed barges. Agrinulear Nucleo Agro differentiates itself by offering purpose-built solutions. While competitors use standard cast iron shafts that rust and seize, we offer Stainless Steel 304 output shafts as a standard option for our “Aqua” line. We ensure seamless compatibility with major feeding system brands found in Brazil:<\/p>\n Isen\u00e7\u00e3o de responsabilidade:<\/strong> All original equipment manufacturer (OEM) names, trademarks, and model numbers (e.g., Akva, Steinsvik) are for reference and identification purposes only. Agrinulear Nucleo Agro is an independent manufacturer and is not affiliated with, endorsed by, or sponsored by these brands.<\/p>\n <\/p>\n “Our barge feeders run 12 hours a day. The old gearboxes would overheat and leak oil into the lake, a huge environmental risk. Agrinulear’s units run 15\u00b0C cooler and the double seals give us peace of mind.”<\/p>\n – Operations Manager, Sr. Carlos<\/span><\/p>\n<\/div>\n “In our RAS facility, feed dust is everywhere. It killed our previous motor gearboxes in 6 months. The IP67 rating on the Agrinulear ‘Aero-Dose’ is real; we opened one after a year and it was spotless inside.”<\/p>\n – Technical Director, Ana M.<\/span><\/p>\n<\/div>\n “The salt air here is corrosive. Agrinulear’s epoxy coating holds up better than anything else we’ve tried. The stainless shafts saved us hours of maintenance chipping off rust.”<\/p>\n – Maintenance Lead, Jorge R.<\/span><\/p>\n<\/div>\n “We feed large pellets for Tambaqui. Sometimes they jam the valve. The high torque of the Agrinulear worm gear powers through the jams where our old drives would stall and burn the motor.”<\/p>\n – Farm Owner, Lucas B.<\/span><\/p>\n<\/div>\n |
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